docs: def set_working_directory(self, path):
          r"""
          Set the working directory to ``path``\ . All relative paths will
          be resolved relative to it.
  
          :type path: str
          :param path: the path of the directory
          :raises: :exc:`~exceptions.IOError`
          """
          _complain_ifclosed(self.closed)
          return self.fs.set_working_directory(path)